Role of plasma high mobility group box-1 in disseminated intravascular coagulation with leukemia

Abstract Introduction High mobility group box 1(HMGB1) is a DNA-binding protein which can act as a proinflammatory cytokine when released by necrotic cells, monocytes or macrophages. It also plays a role in the coagulation activation and several tumors including leukemia. The objective of this study was to investigate the role of HMGB1 in the diagnosis of DIC with leukemia. Methods 89 subjects with leukemia in Wuhan Union Hospital were prospectively recruited. Among them, 83 cases were suspected of DIC, while the other 6 were the negative controls. Their clinical data, laboratory tests and plasma samples were collected or measured respectively. Accordingly, we made scores for these subjects by the Japanese Ministry of Health and Welfare (JMHW) criteria. Results This study demonstrated that the plasma levels of HMGB1 were higher in the DIC group than non-DIC (115.16 ng/ml vs. 63.94 ng/ml, p = 0.003). The similar results were achieved in infected or non-infected groups. And along with the increase of DIC scores, the levels of HMGB1 increased gradually (p = 0.006). In addition, HMGB1 was an independent factor in the diagnosis of DIC with leukemia(p  Conclusion The increased plasma levels of HMGB1 were related tightly to the diagnosis and severity of DIC in leukemia patients. Furthermore, the diagnostic sensitivity of HMGB1 was high. So HMGB1 in plasma is a helpful molecular marker, and can be added in the scoring system for the early diagnosis of DIC with leukemia.